Wire-gripper.



P. BAMMER.

WIRE GRIPPBR.

APPLIGATION FILED JUNE zo. 1911.

Patented Apr. 22, 1913 l Inventor, @M4 y Attorneyf Witness as 'UNITED salaries PATENT onirica.

PIUS HAMMER, i 0F I ASHLAND, OREGON.

WIRE-GRIPPER.`

` Specification of Letters Patent. Application led June 20, 1911.l Serial No. 634,387.

Patented npr. 22, 191s.

To all/ankam. t may concern i The devicels especially adapted foruse Fig. 3 `is 'a bottom view of the gripper. g Fig. 4 is a rear end View of the grlpper on 43the eccentric lock 24;, which 1s mounted on the pin 3l in the `transverse portion 22. Opposed to said lock is a lug 40 secured by on machines of the character embraced in my application No'. 611,866, for button attaching machines, iiled March 2, 1911.

I accomplish these objects by the mechanism illustrated in the accompanying drawing, in whichljigure 1 is a plan view showing' the lever in outward position, with the jaws open ready to grip the wire. Fig. 2 is the same in" returned position, gripping the wire.

the) line :vv-y of Fig. 2x`

Similar reference characters designate i similar parts in each view.

In the drawing, 1 is the floor of the casing in which is mounted the operative mechdescending plunger 7, contacts with the cam projection 12 forcing the lever 8 outwardly against the spring 17. In this movement the shoulder 5 contacts with the link 4 car- :mism of a shoe button fastening device.

2 is the side or edge member ot' the casing.

ln the upper portion oit the casing at 9 is pivotally mounted the cam lever 8, having at its side the cam projection 12, against which the cam surface 11 of the plunger 7 operates as it reciprocates in the groove l0 of the casing floor. 4 The downward movement of `the plunger against the` projection l2 forces the lever `8 outwardlyagainst the spring 17, carried onthe rod 13, which is4 mounted on the pivot 1S in the recess 16 of the lever, The, outer end of the spring bears against the plate 19 .resting on `the support 14 against the rim. 2, through which the rod passes by `ineens of aperturej.` In thefloor l is provided a groove 20 to receive the guide pin` 2l on the lower side ot' the lever. The lower end of 'the lever is curved outwardly and reduced so as to forni said reduced portion is secured the link et,

end of the link, by means of pin 26,.,is pivotally secured the upper jaw 27 of the gripper, in the slot 3 of said link.

In the floor of the casing, at the lower portion, is formed a transverse slot 43, having an enlarged rear portion 48, in which reciprocates the lower jaw 42 of the gripper. At the farther side of the jaw 42, is formed an upper and lower recess adapted to receive the correspondingly formed edges of the elevated portion 22 of the casing, forming the track in which the gripper reciprocates. The enlarged rear portion 44; afords a support for the antifriction rollers 45 which are supported on the bearing pins 45 and which prevent the gripper from bind-y ingin its slot.

The upper jaw is provided at the `rear end with a slot'. 33 in which is pivotally secured thc lower jaw by means of pivot pin 30. At the lower front corner` of the jaw 27 isa forwardly projecting lug 35, which isopposed by and contacts with a similarly formed lug on the lower jaw.

Upon the frame work 28 of the casing,

by means of the pivot 6, and to the lower secured on the side adjacent the gripping jaws, a spring23, adapted to bear against the screw 41, against `which the wire is held.

In operation, the cam surface 11, of the rying it backwardly; but as the link is free to move on the pins 6 and 26 there will be a `slight upward movement, before it strikes upon the wire 34. The jaws after being opened will be forced outwardly, until the return ol the plunger releases the lever- 8, when the spring 17 will :torce the lever forward again to its original position. With the forward movement of the lever, the liuk 'forces the jaw 27 downwardly, when the lugs 35 and 39` engage the wire 34 carrying it forward through the aperture 3S of the casing 2 and 37 of the frame piece 28, in position for the section 34 to be severed by the knife 36011 the terminal member 29 of the i plunger.l During .sucht forward movement,

f the wire moves against the shortA side `of the.k

dany cause, the wire is `drawn backvvardly,v

i the lock will at once engage the wireand arrest such movement. It will thus be seen that the machine has perfect control of the wire so as to always deliver the amount required and to prevent a Vreturn movement. A.

Having thus described my invention so that others skilled in the art to which it er. tains may Imake anduse the same, what I claim as` new and kdesire to secure by Letters j Patent, l

.I l.` A wire gripper comprising `abase having a transverse groove at its lower end, a lever pivoted on said base, grippingl jaws pivoted together at their outer ends and reciprocating in said groove, a link connectingthen'inner .end of one jaw to said lever, and means tor operating the lever. '2. A lwire gripper' comprising a base hav-` ing atransverse roove in' its lower end,.a level'.A pivoted to t e upper end of the base with the lower end inclining to the side thereof, gripping jaws pivoted together at their louter ends and reciprocating in` Said groove, a link connecting the inner end of the upper jaw to theeutward1y inclinedend j of said lever, and means for operating said lever.l d j 31 In a wire gripping device, a casing havinga transverse track at its lower side,..-

gripping jaws mounted to reciprocate in said track,-a lever pivoted to vibrate ingthe casing -a. connect-ing the lever with the 40 gripping jaws,-and actuatingmeans within vthe i casing for reciprocating said lever,

' whereby the jaws will be o ened during their outward movement and-c osed during their 4 v4return movement. v

, 4. In a wire gripping device, a casing hav# ing a. transverse track at its lower fs1de,'- gripping jaws mounted to reciprocate in sai track,-a lever pivoted to vibrate in thek L c a'nted for engaging `the wire, pivotally w; connected 'at their outer ends,'-a linkpivotu`A casing,-a link connecting the lever with'the gripping jaws,-and means for ypreventing 5,0

said jaws from binding in their track...

6, "In a'-.wi're` gripping device, a easin4 havi, ing a transverse track at its lower-side;-

gripping jaws mounted ,to 'reciprocate in said track,`-a lever pivoted to vibratein the casing,-a link connecting the lever with the gripping jaws,-oppsitely disposed lugs on said jaws for engaging the wirerand means for preventingi'eturn' movement bfthe wire.

7 In a machine of the character described,

a. casing,-a plunger mounted to reciprocate there1n,-a lever having a cam .projection 4ment ofthe wire,-and Imeans for holding the cam vllever in contact with said plunger.

8. In a machine of the character deScribdf'f-Y i a casing, a lever mounted to vibrate therein,

lgripper comprising upper and lower jaws i ally connecting the inner endof the fer jaw with said lever,means .for preventing".;85 the gripper from binding `in its 'trackf l means i`or preventing return movement ,of'

the wirefarand means for reciprocating the lever for operatinggthe grip er.l

in presenceot two witnesses.y

In testimony whereof I a x my signature Witnesses: i'

L. G. VAN BELLEN, M. E. Biueus-- 

